rebmemeR writes: Demonoid had been offline for the previous 6 days but resumed operations last night. Rumors about the cause of the outage were indeterminate. The site now displays the following note.

"We received a letter from a lawyer represeting [sic] the CRIA, they were threatening with legal action and we need to start blocking Canadian traffic because of this."

The CRIA (Wikipedia) (Canadian Recording Industry Association) is a lobbying firm backed by international music marketers.
Demonoid is held to be the second most popular BitTorrent tracker, after The Pirate Bay.